Structural and histochemical characterization of the osmophores in corollas of Asteraceae (tribes Onoserideae and Famatinantheae)

Osmophores are engaged in scent production and differ from other secretory structures by their product, site, duration, and anatomical structure. Whereas osmophores have been well-documented in flowers of several families, they are barely mentioned in the Asteraceae. The aims of this study are to: 1...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Katinas, Liliana, Hernández, Marcelo Paulo, Sancho, Gisela
Formato: Articulo
Lenguaje:Español
Publicado: 2020
Materias:
Ciencias Naturales
Botánica
Anatomy
Asteraceae
Compositae
Histochemistry
Osmophore
Scent production
Secretory structures
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/124402
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-124402
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Naturales
Botánica
Anatomy
Asteraceae
Compositae
Histochemistry
Osmophore
Scent production
Secretory structures
spellingShingle Ciencias Naturales
Botánica
Anatomy
Asteraceae
Compositae
Histochemistry
Osmophore
Scent production
Secretory structures
Katinas, Liliana
Hernández, Marcelo Paulo
Sancho, Gisela
Structural and histochemical characterization of the osmophores in corollas of Asteraceae (tribes Onoserideae and Famatinantheae)
topic_facet Ciencias Naturales
Botánica
Anatomy
Asteraceae
Compositae
Histochemistry
Osmophore
Scent production
Secretory structures
description Osmophores are engaged in scent production and differ from other secretory structures by their product, site, duration, and anatomical structure. Whereas osmophores have been well-documented in flowers of several families, they are barely mentioned in the Asteraceae. The aims of this study are to: 1) determine the occurrence of osmophores in corollas of 39 species of the tribe Onoserideae and the only species of Famatinantheae with histochemical methods; and 2) analyze the morphology and structure of osmophores in these groups. Histochemical and histological techniques revealed osmophores in the marginal and in the central corollas of <i>Famatinanthus</i> Ariza & S.E. Freire and <i>Plazia</i> Ruiz & Pav. at the apex and margin of the corolla lobes, and at the sinuses. Osmophores were confirmed following positive staining reactions for TIOFH and TIOFH3 (Neutral Red, Oil Red O, and Iodine-Potassium-Iodide); the samples reacted negatively for Benedict's test for detecting reducing sugars. The osmophores found in this study are constituted uniquely by a papillose or non-papillose epidermis, or they extend into the mesophyll forming scent glands. In both cases, they are associated to stomata and starch grains. The corollas of the other species of Onoserideae did not react positively for osmophores.
format Articulo
Articulo
author Katinas, Liliana
Hernández, Marcelo Paulo
Sancho, Gisela
author_facet Katinas, Liliana
Hernández, Marcelo Paulo
Sancho, Gisela
author_sort Katinas, Liliana
title Structural and histochemical characterization of the osmophores in corollas of Asteraceae (tribes Onoserideae and Famatinantheae)
title_short Structural and histochemical characterization of the osmophores in corollas of Asteraceae (tribes Onoserideae and Famatinantheae)
title_full Structural and histochemical characterization of the osmophores in corollas of Asteraceae (tribes Onoserideae and Famatinantheae)
title_fullStr Structural and histochemical characterization of the osmophores in corollas of Asteraceae (tribes Onoserideae and Famatinantheae)
title_full_unstemmed Structural and histochemical characterization of the osmophores in corollas of Asteraceae (tribes Onoserideae and Famatinantheae)
title_sort structural and histochemical characterization of the osmophores in corollas of asteraceae (tribes onoserideae and famatinantheae)
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/124402
work_keys_str_mv AT katinasliliana structuralandhistochemicalcharacterizationoftheosmophoresincorollasofasteraceaetribesonoserideaeandfamatinantheae
AT hernandezmarcelopaulo structuralandhistochemicalcharacterizationoftheosmophoresincorollasofasteraceaetribesonoserideaeandfamatinantheae
AT sanchogisela structuralandhistochemicalcharacterizationoftheosmophoresincorollasofasteraceaetribesonoserideaeandfamatinantheae
bdutipo_str Repositorios
_version_ 1764820450293055489

Ejemplares similares